The city of Chicago will test tap water for lead in areas where street mains have been replaced.
Water main replacement can reportedly result in high levels of lead leaching into drinking water.
According to reporting by the Chicago Tribune, only three of the 50 Chicago homes the city tested in 2015 for lead in the water were on streets that had a water main replaced in the last five years.
Now, the city says it will seek volunteer homeowners for tap water testing before and after the replacement of street mains in their area.
"The department strives to provide the cleanest, best-tasting water possible, and this new study is just the latest example of our efforts to ensure we're using the most up-to-date methods to ensure water quality," reads a statement from Chicago Water Commissioner Barrett Murphy.